DC 12V USB Serial Port Relay Optically isolated UART RS232 Switch Board CH340

DC 12V USB Serial Port Relay Optically isolated UART RS232 Switch Board CH340

Price	$48.73
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Description:
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1: Working voltage: DC 12V optional
2: (DC12V)Standby current (all relays closed) 11MA, 1 relay open 39MA, 2 relays open 67MA, 3 relays open 95MA,4 relays open 121MA,5 relays open 147MA,6 relays open 173MA, 7 relays open 198MA,8 relays open 222MA
3 8 photoelectric isolation Input ports (NPN low level active ), the input and output relationship can be set to associated (default) and non-associated through commands.
4 UART serial port protocol, USB_B female interface (CH340 chip)
5 USB interface supports Windows(WIN10 WIN8 WIN7 WINXP), Linux and MAX operating systems
6: ''Open'' ''Close'' ''Momentary'' ''Self-locking'' ''Interlock'' ''Delay'' ''All Relays Open'' ''All Relays Close'' 8 Commands
7 Two kinds of commands: AT command and 8-byte command, the two commands are automatically recognized, no need to switch.
8: Under the ''Delay'' command ,the maximum delay is 9999 seconds(Only AT command)
9 Size: 111 * 63 * 19mm
10 Weight: 123 g
11 Maximum load: 10A / 250VAC, 10A / 125VAC, 10A / 30VDC, 10A / 28VDC, 10A / 12VDC
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Without the USB B cable, you need to purchase the USB cable separately.
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Application

Remote control, remote measurement system;
Wireless meter ;
Smart Home,Home Automation ,Wiser Home;
Access control ;
Identification system ;
Data collection;
IT household appliance ;
Intelligence household appliance;
Baby monitoring system;